/**********************************************************************************
 ***
 ***    Screencasting Teaching System C++ Library
 ***    Copyright (C) 2011  Jiri Novak <jiri.novak@petriny.net>
 ***                        Wadi Jalil Maluf <wadijm@gmail.com>
 ***
 ***    This file is part of the Screencasting Teaching System C++ Library.
 ***
 ***    This library is free software; you can redistribute it and/or modify
 ***    it under the terms of the GNU General Public License as published by
 ***   the Free Software Foundation; either version 3 of the License, or
 ***    (at your option) any later version.
 ***
 ***    This library is distributed in the hope that it will be useful,
 ***    but WITHOUT ANY WARRANTY; without even the implied warranty of
 ***    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 ***   GNU General Public License for more details.
 ***
 ***    You should have received a copy of the GNU General Public License
 ***    along with this library; if not, write to the Free Software
 ***    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 ***
 *********************************************************************************/

#include "course.h"
#include "user.h"

/**
 *
 */
Course::Course() {
}

/**
 *
 */
Course::~Course() {
  for (std::list<Lesson*>::iterator it = lessons.begin(); it != lessons.end(); it++) {
      delete *it;
  }
  for (std::list<User*>::iterator it = students.begin(); it != students.end(); it++) {
      delete *it;
  }
  for (std::list<User*>::iterator it = instructors.begin(); it != instructors.end(); it++) {
      delete *it;
  }
}
bool Course::isSubscribed(User* user){
  for (std::list<User*>::iterator it = students.begin(); it != students.end(); it++) {
      if((*it)->getId()==user->getId()){
          return true;
      }
  }
  for (std::list<User*>::iterator it = instructors.begin(); it != instructors.end(); it++) {
      if((*it)->getId()==user->getId()){
          return true;
      }
  }
  for (std::list<Lesson*>::iterator it = lessons.begin(); it != lessons.end(); it++) {
        if((*it)->isSubscribed(user))
          return true;
    }
  return false;
}
